Answer:
D. Baking soda produces bubbles when vinegar is poured on it.
Explanation:
Acetic acid = C₂H₄O₂
Baking soda = NaHCO₃
C₂H₄O₂ + NaHCO₃ → NaC₂H₃O₂ + H₂O + CO₂
When baking soda is added to vinegar, a chemical reaction will take place producing a huge amount of carbon-dioxide in the form of bubbles in the foaming mixture.
Answer:
![\begin{array}{l|l}\text{Speed}\; \mathrm{(m\cdot s^{-1})} & \text{Minimum Height\;(m)}\\\cline{1-2}\\[-1em] 2 & 0.204\\3&0.459\\4 & 0.815\\5 & 1.27 \\6 & 1.83\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bl%7Cl%7D%5Ctext%7BSpeed%7D%5C%3B%20%5Cmathrm%7B%28m%5Ccdot%20s%5E%7B-1%7D%29%7D%20%26%20%5Ctext%7BMinimum%20Height%5C%3B%28m%29%7D%5C%5C%5Ccline%7B1-2%7D%5C%5C%5B-1em%5D%202%20%26%200.204%5C%5C3%260.459%5C%5C4%20%26%200.815%5C%5C5%20%26%201.27%20%5C%5C6%20%26%201.83%5Cend%7Barray%7D)
.
Assumptions:
- The object is dropped in a free fall.
- There's no air resistance.
- The downward acceleration due to gravity is
Explanation:
Consider the "SUVAT" equation
,
where
is the final velocity,
is the initial velocity,
is the acceleration of the object, and
is the change in the object's position.
For example, if the bottle needs to achieve a speed of 
by the time it reaches the ground,
since the statement that the bottle is "dropped" implies a free fall.
.
Apply the previous equation to find the minimum height, :
.
Replace the value and apply the formula to find the minimum height required to reach different final speeds.
Well for the The weather on the coast of Virginia is probably warm and dry. A cold front would likely bring <span>rain or rainstorms. would be B Rainstorms</span>
The formation of new volcanoes and the eruption of some existing ones already.
Answer:
Explanation:
An object falling loses gravitational potential energy and gains kinetic energy. The gravity potential is the gravitational potential energy per unit mass. This energy comes from the gravitational potential energy released when the water falls. ... At 0, all the energy is in gravitational potential energy.
